CN219106541U

CN219106541U - Electrical connection device and electrical cabinet

Info

Publication number: CN219106541U
Application number: CN202223034239.XU
Authority: CN
Inventors: 刘娜; 刘振邦; 吴炯; 樊钊
Original assignee: Gree Electric Appliances Inc of Zhuhai; Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai; Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-05-30
Anticipated expiration: 2032-11-14

Abstract

The utility model relates to an electrical connection device and an electrical cabinet. The electric connection device comprises a wiring terminal and a detection control component. The connection terminal comprises at least one first terminal and one second terminal for respectively electrically connecting with different electric cables, and each first terminal is correspondingly and electrically connected with at least one second terminal. The detection control component obtains the operation parameters and the dimension parameters of the electric cable and controls the on-off of the electric connection between the first wiring terminal and the second wiring terminal based on the operation parameters and the dimension parameters. Wherein the operating parameter of the electrical cable comprises current and the dimensional parameter comprises wire diameter. According to the electric connection device, the detection control component judges whether the current is excessive or not based on the wire diameter of the connected electric cable, and then the on-off of the electric connection is controlled. The electric connection device can be better suitable for electric cables of different types, and can make more accurate judgment according to different wire diameters, so that the operation safety of various electric cables connected with the electric connection device is ensured.

Description

Electrical connection device and electrical cabinet

Technical Field

The present utility model relates to the field of electrical apparatuses, and in particular, to an electrical connection device and an electrical cabinet.

Background

The connecting terminal can be used for conveniently connecting wires, and is very popular in various fields of global industry, traffic, construction and the like. When the equipment in the electric cabinet is separated and connected with the outside of the cabinet, special wiring terminals are needed. The fastening means of these terminals in combination is called a terminal block. The wiring terminal block can lead the wiring to be regular, the wiring to be attractive, the maintenance to be convenient and the like, so that the wiring terminal block has wide application. The connecting terminal strip is used as a bridge for connecting the internal and external electrical equipment of the electrical cabinet and is an important electrical element in the electrical cabinet.

The parameter ranges that can be safely operated are different for different types of cables. Correspondingly, in the prior art, the design of the wiring terminal block with the safety protection function has stronger pertinence at the beginning, and only can provide installation guarantee for the electric connection of cables with fixed types. Therefore, when the wiring terminal block is used for power connection, correct type selection and application according to cables are important for electrical safety of the electrical cabinet. However, this approach also results in that the terminal block and the electrical cabinet provided with the terminal block can only provide electrical connection for specific cables, and cannot meet the flexible requirements of different electrical connections in the electrical cabinet.

Disclosure of Invention

In view of the above, it is necessary to provide an electrical connection device and an electrical cabinet capable of accommodating different cable safety connections.

An electrical connection device for connecting an electrical cable, the electrical connection device comprising:

a connection terminal comprising at least one first terminal and at least one second terminal for respectively electrically connecting with different electrical cables, each first terminal being correspondingly electrically connected with at least one second terminal;

the detection control assembly is used for acquiring the operation parameters and the dimension parameters of the electric cable and controlling the on-off of the electric connection between the first wiring terminal and the second wiring terminal based on the operation parameters and the dimension parameters; wherein the operating parameter comprises a current of the electrical cable and the dimensional parameter comprises a wire diameter of the electrical cable.

According to the electric connection device, the detection control component can acquire the current and the wire diameter of the electric cable and take the parameters as control basis. Because the wire diameter of the electric cable is directly related to the safety threshold value of the current which can be born by the electric cable, the detection control component can judge whether the current is excessive or not based on the wire diameter of the current connected electric cable, and further control the on-off of the electric connection between the first terminal and the second terminal. Therefore, the electric connection device can be better suitable for electric cables of different types, and can make more accurate judgment according to different wire diameters, so that the operation safety of various electric cables connected with the electric connection device is ensured.

In one embodiment, the detection control assembly includes a current detector for detecting a current of the electrical cable and a calliper for detecting a wire diameter of the electrical cable.

In one embodiment, the current detector is a clamp meter and the calliper is an infrared calliper.

In one embodiment, the operating parameters further comprise a temperature of the electrical cable;

the detection control assembly further includes a temperature detector for detecting a temperature of the electrical cable.

In one embodiment, the detection control assembly further comprises a pressure detector, and the pressure at the connection position of the wiring terminal and the electric cable is detected by the pressure detector;

and when the pressure is smaller than the preset pressure, the detection control component sends out a virtual connection warning signal.

In one embodiment, the connection terminal further comprises a screw tightening piece, and the connection with the electric cable is tightened through the screw tightening piece;

the pressure detector is a pressure sensor arranged at the tightening part of the thread tightening piece.

In one embodiment, the detection control assembly further comprises a release, and the on-off of the electrical connection between the first terminal and the second terminal is controlled through the release.

In one embodiment, the detection control assembly further includes an alarm that issues a power outage warning signal when the detection control assembly needs to disconnect the electrical connection between the first terminal and the second terminal.

In one embodiment, the electrical connection device further includes a mounting base and a cable positioning member, wherein the mounting base is used for mounting the connection terminal, the detection control assembly and the cable positioning member, and the cable positioning member is used for positioning the electrical cable on a preset path of the electrical cable.

In one embodiment, the mounting seat is configured with a receiving groove, and the cable positioning member is rotatably connected to the mounting seat and configured to have a receiving state received in the receiving groove and an operating state protruding from the receiving groove.

An electrical cabinet comprising the electrical connection device.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an electrical connection device according to an embodiment of the present utility model;

FIG. 2 is a top view of the electrical connection device shown in FIG. 1;

FIG. 3 is a front view of the electrical connection device shown in FIG. 1;

fig. 4 is a schematic structural diagram of the electrical connection device shown in fig. 1 mated with an electrical cable.

Reference numerals illustrate: 100. an electrical connection device; 10. a connection terminal; 11. a first terminal; 13. a second terminal; 15. a screw tightening member; 30. detecting a control component; 31. a pressure detector; 50. a mounting base; 70. a cable positioning member; 300. an electrical cable; s, an accommodating groove; K. and (5) a via hole.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 to 3, an electrical connection device 100 according to an embodiment of the present utility model includes a connection terminal 10 and a detection control assembly 30. The connection terminal 10 comprises at least one first terminal 11 and at least one second terminal 13 for respectively electrically connecting with different electrical cables 300, each first terminal 11 being electrically connected with at least one second terminal 13. The detection control assembly 30 acquires the operation parameters and the dimension parameters of the electric cable 300, and controls the on-off of the electric connection between the first terminal 11 and the second terminal 13 based on the operation parameters and the dimension parameters. Wherein the operating parameter comprises the current of the electrical cable 300 and the dimensional parameter comprises the wire diameter of the electrical cable 300.

The electrical connection device 100 may be used in an electrical cabinet to complete electrical connections between different electrical cables 300. The first terminal 11 and the second terminal 13 of the connection terminal 10 may be electrically connected one to one, or may be electrically connected one to many, so long as the electric cables 300 respectively connected to the first terminal 11 and the second terminal 13 can be electrically connected correspondingly as required. The manner in which the detection control assembly 30 obtains the operating parameters and the dimensional parameters may be measurement acquisition and/or manual operator input. It will be appreciated that after the parameters are obtained, it can be determined whether the current exceeds a set safety threshold, if within which safety operation is indicated, the electrical connection between the first terminal 11 and the second terminal 13 can be maintained, whereas if there is a risk of operation, the electrical connection between the first terminal 11 and the second terminal 13 should be broken, i.e. the electrical cable 300 electrically connected by the electrical connection device 100 is broken. The safety threshold and the wire diameter of the electrical cable 300 have a corresponding relationship, and the safety threshold may be an empirical value input in advance, or may be obtained by detecting the control component 30 according to a formula calculation or the like. Where the wire diameter refers to the diameter of the electrical cable 300 to which the terminals are connected.

It should be understood that the operation parameter and the dimension parameter should be at least one parameter of the electrical cable 300 connected to the first terminal 11 and the electrical cable 300 connected to the second terminal 13, and when the two wires or currents are different, it is determined whether the currents of the two wires or currents are simultaneously within the safety thresholds of the two wires or currents respectively, so as to ensure that the whole operation is in a safe state.

The detection control assembly 30 of the electrical connection device 100 can obtain the current and the wire diameter of the electrical cable 300 and use these parameters as the control basis. Because the wire diameter of the electrical cable 300 is directly related to the safety threshold of the current that the electrical cable 300 can withstand, the detection control component 30 can determine whether the current is excessive based on the wire diameter of the currently connected electrical cable 300, so as to control the on-off of the electrical connection between the first terminal 11 and the second terminal 13. Therefore, the electrical connection device 100 can better adapt to electrical cables 300 of different types, and make more accurate judgment according to different wire diameters, ensure the operation safety of various electrical cables 300 connected with the electrical connection device, and further meet the requirement of flexibly connecting the electrical cables 300.

In this embodiment, the connection terminal 10 includes four first terminals 11 arranged side by side and four second terminals 13 arranged side by side, the first terminals 11 and the second terminals 13 being arranged opposite to each other and electrically connected one to one. It will be appreciated that in other embodiments, the number of terminals may be set as desired, and is not particularly limited herein.

Further, the detection control assembly 30 includes a current detector for detecting the current of the electric cable 300 and a calliper (not shown) for detecting the wire diameter of the electric cable 300.

The detection control assembly 30 may directly measure the current data of the electrical cable 300 connected to the electrical connection terminals through the current detector for determining whether it is within the safety threshold. The calliper may then be used to determine the class of the electrical cable 300, in order to determine a safety threshold for the operating parameters of the electrical cable 300, i.e. the safety threshold for the amount of current that the electrical cable 300 can allow. In addition, to ensure overall safety, the current detector may detect the current of all the electrical cables 300, the calliper may measure the wire diameters of all the electrical cables 300, respectively, and the electrical connection device 100 should ensure that the operation of all the electrical cables 300 is safe.

Further, the current detector is a clamp flow meter, and the calliper is an infrared calliper.

The clamp flow meter can be well adapted to the connected electrical cable 300 without affecting its connection. The infrared calliper has long service life, low cost and reliable performance.

It will be appreciated that in other embodiments, the current detector may also be a device capable of measuring the current of the electrical cable 300, such as an ammeter connected between the corresponding first terminal 11 and the second terminal 13 or between the electrical cable 300 and the connection terminal 10, and the calliper may also be a device capable of measuring the wire diameter of the electrical cable 300, such as a laser scanning calliper, an optoelectronic calliper, and the like, which is not particularly limited herein.

Still further, the detection control assembly 30 further includes a release (not shown), and controls the on-off of the electrical connection between the first terminal 11 and the second terminal 13 through the release. When the operation parameter of the electrical cable 300 obtained by the detection control assembly 30 exceeds the safety threshold, the electrical connection between the first terminal 11 and the second terminal 13 is disconnected by the trip unit.

It will be appreciated that to ensure the re-use of the electrical connection apparatus 100, the disconnection caused by the trip device may be reset by an automatic or manual means.

In some embodiments, the operating parameters further include a temperature of the electrical cable 300. The detection control assembly 30 further includes a temperature detector (not shown) for detecting the temperature of the electrical cable 300.

The temperature detected by the temperature detector is also used to determine a current safety threshold for the electrical cable 300. The temperature itself may be set with a temperature safety threshold, and this may be used as another criterion for determining whether or not the electrical cable 300 is safely operated.

In some embodiments, the detection control assembly 30 further includes an alarm (not shown) that emits a power outage warning signal when the detection control assembly 30 needs to cut off the electrical connection between the first terminal 11 and the second terminal 13. The power-off warning signal can be a signal which has prompting performance such as sound, color, characters and the like and can be perceived by an operator.

The alarm can send out a power-off warning signal to the power-off action, so that an operator can realize that the electrical connection device 100 may malfunction or have potential safety hazards and be disconnected, and after receiving the power-off warning signal, the operator can check, overhaul and restore the electrical connection of the electrical connection device 100 in time.

In other embodiments, when the operating parameter approaches the safety threshold, for example, is within 10% of the safety threshold, indicating that the operation is at a dangerous edge, an early warning signal may be sent by the alarm to alert the operator to increase attention or perform inspection. When the operating parameter significantly exceeds the safety threshold, for example, 10% of the safety threshold, it indicates that the operation is dangerous at this time, the electrical connection of the electrical connection device 100 may be disconnected, and a power-off warning signal may be sent out by an alarm to warn an operator.

Referring to fig. 4 together, in some embodiments, the electrical connection device 100 further includes a mounting base 50 and a cable positioning member 70, wherein the mounting base 50 is used for mounting the connection terminal 10, the detection control assembly 30 and the cable positioning member 70, and the cable positioning member 70 is used for positioning the electrical cable 300 on a predetermined path of the electrical cable 300.

The electrical cable 300 is easily wound when extended or is separated from a predetermined path to easily interfere with other components to affect the stability of connection. Therefore, the cable positioning member 70 is added, so that the electrical cable 300 can be prevented from being separated, the connection is ensured to be more stable, the pressure at the connection position of the connection terminal can be shared, and the influence of external force receiving action of the electrical cable 300 is reduced. Wherein the calliper may be mounted on a cable positioning member 70.

Further, the mounting base 50 is configured with a receiving groove S, and the cable positioning member 70 is rotatably connected to the mounting base 50 and configured to have a receiving state received in the receiving groove S and an operating state protruding from the receiving groove S.

The cable positioning member 70 extends out when the positioning operation is required for the electric cable 300, so as to adapt to the position of the electric cable 300, and is retracted and accommodated in the accommodating groove S when the positioning operation is not required for the electric cable 300, so that the space occupation is reduced and the interference to other components is avoided.

Further, the cable positioning member 70 is a hanging ring with a through hole K, and the electrical cable 300 can be positioned through the through hole K. It will be appreciated that in other embodiments, the cable positioning member 70 may take other forms, such as a wire clip, a hook, etc., without limitation.

Referring again to fig. 3, in some embodiments, the detection control assembly 30 further includes a pressure detector 31, and detects the pressure at the connection position of the connection terminal 10 and the electrical cable 300 through the pressure detector 31. When the pressure is smaller than the preset pressure, the detection control component 30 sends out a virtual connection warning signal.

The connection terminal 10 can form a stable connection with the electric cable 300 under a preset pressure. The pressure detector 31 can detect the loose connection, and when the pressure at the connection position of the connection terminal 10 and the electrical cable 300 is too small, it indicates that the connection of the connection terminal 10 and the electrical cable 300 has the problems of loose connection, loose wire or loose wire. At this time, send out the virtual warning signal that connects, can remind operating personnel in time to look over and reject the obstacle, prevent effectively that the device that causes by this kind of problem from burning out, ensure the reliability of connection to improve the reliability of equipment operation. The virtual connection warning signal may be the same as the power-off warning signal, or may be different from the power-off warning signal to distinguish the power-off warning signal.

Further, the connection terminal 10 further includes a screw tightening member 15, and the connection with the electric cable 300 is tightened by the screw tightening member 15. The pressure detector 31 is a pressure sensor provided at the tightening position of the screw tightening member 15. The degree of tightness of the connection of the terminal 10 to the electrical cable 300 can be intuitively controlled by the change in the degree of tightening, and the measured value of the pressure sensor can directly reflect the degree of tightness.

Specifically, the mounting seat 50 is provided with a threaded hole, the threaded tightening member 15 is matched with the threaded hole, the first terminal 11 and the second terminal 13 are conductive sheets, and the threaded tightening member 15 presses down the first terminal 11 or the second terminal 13 when tightening so as to compress the electric cable 300. The pressure sensor is disposed between the screw tightening member 15 and the mounting base 50, and the screw tightening member 15 is configured to simultaneously press down the pressure sensor when pressing down the first terminal 11 or the second terminal 13, and to measure a pressure value.

The electrical connection device 100 integrates the electrical parameter detection functions such as current and temperature and the virtual connection detection function, so that the electrical connection device 100 can detect whether the electrical cable 300 is connected safely in multiple directions and send out a warning signal in time when a fault occurs or hidden danger exists. The electrical connection device 100 can determine the wire diameter of the electrical cable 300 and make a more accurate determination according to the wire diameter of the connected electrical cable 300, so that the electrical connection device can adapt to electrical cables 300 with different wire diameters while ensuring connection safety. In addition, the cable positioning member 70 can enhance the connection stability of the electrical cable 300, reduce the interference of external force, and make the connection more stable.

The utility model also provides an electrical cabinet comprising the electrical connection device 100. The electrical connection device 100 can be fixed at any position inside the electrical cabinet through the mounting seat 50 of the electrical connection device, and space is reasonably utilized. The electrical cabinet having the above-described electrical connection device 100 can flexibly arrange different kinds of electrical cables 300 as needed. In addition, the electrical cabinet should have all the advantages of the electrical connection device 100, which will not be described in detail herein.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. An electrical connection device (100) for connecting an electrical cable (300), the electrical connection device (100) comprising:

-a connection terminal (10) comprising at least one first terminal (11) and at least one second terminal (13) for electrically connecting respectively different said electrical cables (300), each said first terminal (11) being electrically connected at least in correspondence with one said second terminal (13);

the detection control assembly (30) is used for acquiring the operation parameters and the dimension parameters of the electric cable (300) and controlling the on-off of the electric connection between the first wiring terminal (11) and the second wiring terminal (13) based on the operation parameters and the dimension parameters; wherein the operating parameter comprises a current of the electrical cable (300) and the dimensional parameter comprises a wire diameter of the electrical cable (300).

2. The electrical connection device (100) according to claim 1, wherein the detection control assembly (30) comprises a current detector for detecting the current of the electrical cable (300) and a calliper for detecting the wire diameter of the electrical cable (300).

3. The electrical connection device (100) according to claim 2, wherein the current detector is a clamp meter and the calliper is an infrared calliper.

4. The electrical connection device (100) according to claim 1, wherein the operating parameter further comprises a temperature of the electrical cable (300);

the detection control assembly (30) further comprises a temperature detector for detecting the temperature of the electrical cable (300).

5. The electrical connection device (100) according to claim 1, wherein the detection control assembly (30) further comprises a pressure detector (31) and detects the pressure at the connection location of the connection terminal (10) with the electrical cable (300) by means of the pressure detector (31);

when the pressure is smaller than the preset pressure, the detection control component (30) sends out a virtual connection warning signal.

6. The electrical connection device (100) according to claim 5, wherein the terminal (10) further comprises a screw tightening member (15) and the connection with the electrical cable (300) is tightened by the screw tightening member (15);

the pressure detector (31) is a pressure sensor arranged at the tightening position of the thread tightening piece (15).

7. The electrical connection device (100) according to claim 1, wherein the detection control assembly (30) further comprises a release, and wherein the on-off of the electrical connection between the first terminal (11) and the second terminal (13) is controlled by the release.

8. The electrical connection device (100) according to claim 1, wherein the detection control assembly (30) further comprises an alarm, which alarm emits a power outage warning signal when the detection control assembly (30) needs to disconnect the electrical connection between the first terminal (11) and the second terminal (13).

9. The electrical connection device (100) according to claim 1, wherein the electrical connection device (100) further comprises a mounting base (50) and a cable positioning member (70), the mounting base (50) being configured to mount the connection terminal (10), the detection control assembly (30) and the cable positioning member (70), the cable positioning member (70) being configured to position the electrical cable (300) on a predetermined path of the electrical cable (300).

10. The electrical connection device (100) according to claim 9, wherein the mounting base (50) is configured with a receiving slot (S), and the cable positioning member (70) is rotatably connected to the mounting base (50) and configured to have a receiving state received in the receiving slot (S) and an operating state protruding from the receiving slot (S).

11. An electrical cabinet, characterized in that it comprises an electrical connection device (100) according to any one of claims 1-10.